Endress+Hauser has launched the Prosonic M FMU 44, a 2-wire loop powered, non-contact ultrasonic level sensor, that measures levels in tanks and silos up to 20 metres.
The new level sensor is available as 4…20mA/ HART, in Profibus PA and Foundation Fieldbus platforms. The FMU 44 complies with normal 4…20mA loop power wiring and operates on 14 to 36Vdc or down to 10Vdc when used in HART mode with fixed 11mA consumption.According to the manufacturer, the enclosure is IP68 rated and can be supplied with internal overvoltage protection.
The frequency is 30 kHz and pulse repetition is 0.3 Hz.
The sensor’s accuracy is ±0.2% of set range and allowed process/ ambient temperature is -40°C to +80°C. The fully PVDF (polyvinylidene fluoride) encapsulated chemical resistant sensor has a blocking distance of 0.5m and installations in 400mm tall narrow nozzles are possible.